Cheap price GSM gateway 4 ports GOIP gsm voip products for call terminals sim bank

Cheap price GSM gateway 4 ports GOIP gsm voip+products for  call terminals sim bank

 A VOIP GSM Gateway (GOIP) bridges voice communications between the GSM and the IP networks seamlessly.In principle, it consists of a GSM module and a VOIP module. With a SIM card installed, the GSM module registers to the GSM network for voice and SMS services.

GOIP comes with various models of 1, 4, 8,16 and 32 GSM channels. When integrating in a VOIP system, GOIP is highly scalable in meeting customer's requirement on the number of channels (lines). In addition with its power functions, high voice quality, and low price, GOIP is an inevitable choice of many system integrators, call termination operatiors, small companies, and individuals.

Hotsale is 16ports and 32 ports GSM Gateway as follow

Main Functions

· GSM Carriers and Base Stations Optional

· Sending SMS / USSD via built-in webpage or SMS Server

· Remote SIM

· Auto balance check and recharge (prepaid SIM)

· Call time restrictions

· Remote Control Management

· Relay Server support for NAT and encryption of IP packets

· PPTP VPN and Relay Encryption

· Built-in SIP Proxy for peer-to-peer operation

· GSM Quad Band: 850 / 900/1800/1900 MHz

· Call forward from GSM to VOIP and VOIP to GSM

· Call Back

Main Advantages:

· Lightweight and Portable

· Easy to install and administrate

· IMEI Changeable

· GSM Base Station Optional

· Support SIM Bank/ SIM Sever

· Manual/ Automatic Selection Operators

· Sending and Receiving SMS and USSD (Web Interface)

· Flexible Dial plan fo number alternation, call screen.

· Flexible configuration modes.

· All functions can be set on web.

· Provide CDR. 

Picture show 

Free Software/Server

Remote Control Server----Access Interface Remotely.

Relay Server----Relay Encryption( Make Terminals Traversal the NAT without STUN and Outbound Proxy)

SMS Server----Remote SIM cards; Send Bulk SMS; Provide CDR and ASR; Auto Balance and Recharge.

SIM Server----Remote SIM Cards on Duty; Set GSM Group( Assign several SIMs per GSM Port); Set talk time per SIM, Set Day of week, time range; Monitor CDR, ASR, ACD.

Autocfg Server---- Maintence all DBL termial device anywhere; embeded remote control server; Remote sim auto configuration.

Protocols: SIP/H.323

 TCP/IP:IP/TCP/UDP/RTP/RTCP/,CMP/ARP/RARP/SNTP, DHCP/DNSClient,IEEE802.1P/Q.ToS/DiffServ. NAT Traversal, STUN, UPNP.
IP Assignment, Static IP, DHCP, PPPoE

How to work 

1:Description:If you are in china but your main business is in Malaysia, you only put a Malaysia SIM card into the GoIP.In this condition,all calling the SIM number can connect your Phone number in China directly.

2:Description:When you are using the telephone, and you are want to get  preferential from VoIP Phone anytime and anywhere.You just call the SIM card number which in GoIP,the calling number would send to Server by GoIP,then the server receive the calling number and establish the new calling.Then you will receive the new calling,you just accept the calling,Now you are calling with your customer by server.

Packaging & Shipping

 Our Services    

>We provide strong technical support about VoIP service and A-Z termination(7 days*24 hours)
>We can help you rent a VoIP server in USA
>We can provide copy version VOS
>We can instal Relay server, SMS server, SMB server for you.(for free)
>We can offer voip terminal guide
>We would lke to buy your termina routes.
>We offer full tech support until your gateway runs well.

 Company Information

Any ENQUIRY, contact me freely.